\begin{table}[ht] \centering
\newcolumntype{R}{>{\raggedleft\arraybackslash}X}
\newcolumntype{L}{>{\raggedright\arraybackslash}X}
\newcolumntype{C}{>{\centering\arraybackslash}X}

\caption{Test}
\label{tab:abi_denv}
{\scriptsize
\begin{tabularx}{\raggedleft}{@{}lCCCC@{}}

\toprule
&{(1)}&{(2)}&{(3)}&{(4)} \tabularnewline \midrule
{}&{}&{}&{}&{} \tabularnewline
\midrule \addlinespace[\belowrulesep]
Father's Educ<=9 Mean&0.153&0.924&5.554&0.996 \tabularnewline
Father's Educ>9 Mean&0.182&0.904&6.816&0.985 \tabularnewline
P-value&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.026)\} \tabularnewline
N&3.0e+04&7.8e+04&7.8e+04&7.8e+04 \tabularnewline
Mother's Educ<=9 Mean&0.152&0.926&5.728&0.996 \tabularnewline
Mother's Educ>9 Mean&0.200&0.879&6.344&0.983 \tabularnewline
P-value&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.025)\} \tabularnewline
N&3.0e+04&7.8e+04&7.8e+04&7.8e+04 \tabularnewline
Grandmother's Educ<3 Mean&0.154&0.911&5.458&0.987 \tabularnewline
Grandmother's Educ>=3 Mean&0.165&0.932&6.327&1.005 \tabularnewline
P-value&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.000)\}&\textbf\{(0.000)\} \tabularnewline
N&3.0e+04&7.8e+04&7.8e+04&7.8e+04 \tabularnewline
\bottomrule \addlinespace[\belowrulesep]

\end{tabularx}
\\ \parbox{\raggedleft}{\scriptsize Note:}
}
\end{table}
